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A periodic frequency selective surface (FSS) having triple frequency band reject behaviour has been proposed with a square and two dodecagon shaped element. These three elements of the FSS unit cell are embedded on the FR-4 substrate, which acts as a triple band reject filter on the frequency band 1.8 GHz, 2.5 GHz and 5.5GHz to avoid the leakage of GSM, WiMax and WLAN signal outside the building....
In this paper, an Ultra Wideband (UWB) Monopole antenna is proposed for several applications. The size of the antenna is 55mm × 35mm × 1.7mm with dual F-slots in its ground plane and three different pairs of rectangular slots in its upper patch. In order for the antenna to resonate at multiple frequencies or to attain wide impedance bandwidth, the relative lengths, heights and positions of the slots...
Design of a hexagonal monopole antenna capable of operating at 1.5 GHz, 2.5 GHz and 3.5 GHz serving GPS, WLAN and WiMAX applications is reported in this paper. The antenna is comprised of two concentric hexagonal rings with a split along its side length. It is fed by a microstrip line and is printed on a 40×40×3.2 mm3 FR-4 substrate. The effect of the split position on the return loss characteristics...
The paper exhibits a novel design of stair cased shaped fractal antenna for multiband applications. The antenna is designed on FR4 glass epoxy substrate with parameters like thickness 1.6mm, dielectric constant 4.4 and resonant frequency 3.8GHz. Proposed antenna is simulated and coaxial feed is used to analyze its performance. Maximum value of gain observed is 7.51dB. The HFSS version 13 software...
This paper proposes a compact polygon shaped split ring monopole antenna (SRMA) for 2.4/5.0/5.9/7.0 GHz WLAN/WAVE/ITU band applications. The single ring polygon split ring resonator (SRR) structure makes the antenna design simple and compact compared with conventional dual ring SRRs. A wideband behavior is achieved in the upper frequency band by the use of multiple similar edges of polygon and the...
In this paper compact design of planar slot antenna with band-notched function for UWB application is presented. This proposed antenna design explains the method to notch the interfering frequencies in the UWB by loading the small strips over the conventional microstrip patch antenna. To create notch for some narrow bands such as WLAN, WIMAX and X band in the UWB by using slits. This can be done by...
In this paper, we propose a design of compact rectangular microstrip patch antenna (CRMPA). The substrate height is doubled so the effective dielectric constant is changed and it shifts the resonant frequency to lower side and makes the compact antenna. The size reduction of about 31% compared to the actual area required to resonate at 5.4GHz. The bandwidth 700MHz with respect to center frequency...
An inset-microstrip line-fed circular microstrip antenna with a rectangular slot on the radiation element for the dual-frequency operation is proposed. The circular microstrip antenna resonates at 1.58 GHz and 2.43 GHz, which enables it's usage in the wireless communication domain such as in Wireless Local Area Network (WLAN). The two excited modes, which are responsible for the dual-band operation...
A printed monopole antenna with microstrip-fed Sierpinski fractal geometry for dual wideband application is presented. The operating bands are adjusted with the design of modified Sierpinski triangle (radiating patch), ground plane and scale factor used to create a fractal shape. The simulated 10 dB (VSWR 2:1) reflection bandwidth for first resonant frequency is 60% (1.47 GHz2.7 GHz). It covers GPS,...
A printed trident shaped triple-band monopole antenna for wireless application is proposed. The antenna has three different resonant paths (forming a trident shaped structure), supports three resonances at around 2.43 GHz, 3.43 GHz and 5.22 GHz, which are reserved for WLAN and other wireless applications. Effectively constant radiation pattern and large impedance bandwidth has been observed. Impedance...
In this paper, a compact ultra-wideband (UWB) bandpass filter (BPF) with a controllable notched band is proposed and implemented for the application in UWB wireless communication system. Stepped-impedance stub loaded resonator (SISLR), which can generate three resonant modes over the UWB passband with two transmission zeros at both lower and upper stopband, is developed in the filter design with aperture-backed...
In this paper, a small printed antenna for mobile handset and WLAN applications is presented and discussed. The proposed antenna is a printed crescent shape monopole which is mounted on top of a defected ground plane. A 50 ohms microstrip line is used for feeding purposes. The performance of the proposed antenna was analysed and optimised to cover a wide bandwidth from 1.7 to 3.1 GHz. For validation,...
In this letter, a printed broadband monopole antenna design for wireless communication applications in WLAN and WiMAX operation in the 2.4-GHz (2.3-2.7 GHz) band, 3-GHz (3.3-3.8 GHz) band, and 5-GHz (4.9-5.85 GHz) band is presented. This antenna consists of a printed monopole with a tapered slot and shorted coplanar waveguide (CPW) feeding structure, making it easy to combine omnidirectional, multiband,...
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